Results 1 to 10 of about 194 (68)
A survey of aquatic macroinvertebrates in a river from the dry corridor of Nicaragua using biological indices and DNA barcoding [PDF]
Aquatic macroinvertebrates are widely used as indicators for water quality assessment around the world. Modern strategies for environmental assessment implement molecular analysis to delimitate species of aquatic macroinvertebrates.
Bryant H. Mendoza‐Ramírez +4 more
doaj +2 more sources
What Works? the Influence of Changing Wastewater Treatment Type, Including Tertiary Granular Activated Charcoal, on Downstream Macroinvertebrate Biodiversity Over Time. [PDF]
Transformation in the fortunes of a macroinvertebrate population in a wastewater dominated river. ASPT = average score per taxon; LOQ = limit of quantification. Abstract The present study reviewed the impacts of wastewater on macroinvertebrates over 4 decades in a United Kingdom lowland river.
Johnson AC +5 more
europepmc +2 more sources
Las profundas deficiencias que enfrenta el país en políticas de gestión hídrica se reflejan en la contaminación fisicoquímica, microbiológica y biológica de los ríos nacionales. El objetivo de este estudio fue proponer una estrategia de monitoreo hídrico
Guillermo Calvo-Brenes +1 more
doaj +1 more source
Metrics are needed to assess the ecological status of dynamic river ecosystems—including those that sometimes dry—and thus to identify priority sites requiring action to tackle the causes of environmental degradation. Our results inform recommendations guiding the development of such metrics.
Rachel Stubbington +30 more
wiley +1 more source
Pesticides are used throughout the tropics in large amounts to protect crops against pests and weeds. These chemicals may be lost to the aquatic environment and impair its ecological status and the water quality for human consumption.
Frederik T. Weiss +4 more
doaj +1 more source
One of Costa Rica’s driest areas is the province of Guanacaste, in the Pacific Northwest, with almost no rain during the dry season from November to April.
Bert Kohlmann +4 more
doaj +1 more source
The preliminary consequence of pollutants in water is to reduce the quality of water although this may not be immediately noticeable because of the self-purifying ability of some water bodies.
John Ovie Olomukoro +4 more
doaj +1 more source
Challenges Using Extrapolated Family-level Macroinvertebrate Metrics in Moderately Disturbed Tropical Streams: a Case-study From Belize [PDF]
Family-level biotic metrics were originally designed to rapidly assess gross organic pollution effects, but came to be regarded as general measures of stream degradation.
A Yates +77 more
core +4 more sources
Cusuco National Park, a cloud forest park situated in the Merendon Mountains region of Honduras, is home to considerable biodiversity with a very high degree of endemism.
Paul O’Callaghan, Mary Kelly-Quinn
doaj +1 more source
Bioindicadores da qualidade da água em riachos com diferentes coberturas ripícolas na microbacia hidrográfica de Guapara, Equador [PDF]
Agricultural activities produce changes in the margins of the stream banks, causing disturbances in water quality, and in the assemblage of aquatic insect communities.
Arriaga, Gabriela +5 more
core +1 more source

